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r J. s. LENG v VALVE. N0. 298,865. Patented May 20, 1884;.

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N. PETERS. Pwblitholnphur. Washington. D, C.

JOHN S. LENG, OF WEST NEW BRIGHTON, NEW YORK.

VALVE.

SPECIFICATION forming part of Letters Patent No. 298,865, dated May 20,1884.

Applieaiion filed May 22, 1883. (No model.)

To ctZZ whom, t may concern/ Be it known that I, JOHN S. LENG, of VestNew Brighton, in the county of Richmond and State of New York, haveinvented a certain new and useful Improvement in Valves, of which thefollowing is a specification.

My invention relates to what are commonly as straight-way or gate 7valves, in which the valve is opened and closed by a sliding movement ina direction transverse to the water way7 or passage through the shell orcasing, andin which the valveisin many cases attached to a carriagehaving a sliding movement in guides formed in the valve shell or casing.

The invention consists in the combination, with a valve, its shell orcasing, and means for moving the valve in a direction transverse to thewatfr way or passage, the said valve being preferably attached to acarriage movable in said direction, of an adjustable and removable seatscrewed into one of the pipe sockets or openings of the shell or casingto a position inward of the outer end of said socket or opening, so asto leave on the outer side of the said seat a screw-threaded portion ofthe socket or openings for the reception of a pipe. The valve-seat isfaced off truly before being inserted in the shell or casing, and isthen inserted into the pipe socket or opening and screwed in until itcomes to an even bearing on the valve,which previously has been movedinto a closed position. In valves of the kind above referred to, thecarriage to which the valve is attached is often operated by an arm orcam-like lever mounted on a rock-shaft which projects from the valveshell or casing through a stuffing-box; and my invention also consistsin a novel construction of this stuffing-box, as particularlyhereinafter described.

The invention also consists in a novel and simple means of connectingthe valve with its carriage, as hereinafter described.

In the accompanying drawings,Figure 1 is a sectional view of avalveembodying my invention. Fig. 2 is a section thereof in a planetransverse to the water way or passage through the valve. Fig. 3 is aplan, the bonnet of the shell or casing being removed and the valve inan open position. Fig. iisadetail sectional view showing a portion ofthe rock-shaft and stuffing-box, and Fig. 5 is a detail sectional viewof the valve and carriage.

Similar letters of reference designate corresponding parts in all thefigures.

A designates the shell or casing of the valve, which is of ordinaryform, and is provided with the usual pipe sockets or openings, A.

B designates the adjustable and removable valve-seat. lt consists simplyof a ring, the inner face, c, of which is fiat and forms the valve-seatproper. This ring is externally screw-threaded correspondingly to thepipe socket or opening A', and is capable of being screwed into saidpipesoeket from the outer end thereof to a position considerablyinwardof the outer end of the socket, so as to leave a screw-threaded portionof the socket on the outer side of the seat for the reception of a pipe.The pipe-socket is of course slightly taper, and the seat is adapted tobe screwed up tightly therein. The ring B, which forms the seat,isprovided with two or more internal lugs or projections, b, with which awrench may be engaged to turn it in.

O designates the valve proper, which is attached to and moved in adirection transverse to the water way or passage by a carriage, D, whichis capable of sliding freely in guides c, formed in opposite sides ofthe shell or casing A. These guides are inclined relatively to thevalve-seat B, so that the valve will be crowded against the seat as thecarriage is moveddownward orinward. The guides c are open at the upperends, and the casing or shell is provided with the ordinary screwed capor bonnet A2. Then this cap or bonnet is removed, the carriage may beinserted directly into the guides.

The valve C is connected with the carriage D in a novel manner, as seenmost clearly in Fig. 5. The back of the valve is rounded or convex, andat the center thereof there is a projection, d, which enters a hole, e,in the carriage D, and is secured therein by a washer, f, and a screw,g, which is inserted into the said projection. The projection al is somewhat smaller in diameter than the hole e, which it enters, and thecarriage is beveled on each side around the hole e, so that it canadjust itself with perfect freedom in any direction independently ofthecarriage, although it movesr IOO with the carriage in a directiontransverse to the water way or passage. As seen in Fig. 5, the washerfis of 4such small diameter that-it will enter the beveled opening on theback of the carriage around the hole e.

In inserting the seat B the valve is moved down into its closedposition, and the seat, the

- face a of which has been previously surfaced off truly, is screwed inuntil it comes to a solid bearing on the face ofthe valve. In thepresent example of my invention the carriage D is moved to open andclose the valve C by means of a rock-shaft, E, which projects outsidethe shell or casing A, and a cam-like lever or arm F, fitted upon theshaft within the shell or casing. The rock-shaft E may be turned bymeans of a lever or arm, E', secured to it, and within the shell orcasing it has a square or angular portion7 7L, to which the cam-lkelever or arm is iitted. The carriage D is provided on the back withpairs of arms fi i', between which said pairs the lever F works, and thelever has horns j, projecting in opposite directions and between the twoarms of each pair. When the rock-shaft E is turned in one direction, thehorns j, acting on the arms i, raise the carriage and open the valve,andy when turned in the other direction said horns engage with the armsfr" and move ,the carriage to close the valve. In moving the carriage toclose the valve the portion or projection lo on the lever bears on topof the carriage, as shown in Fig. 1, between the arms @'13, and thuspresses the carriage down and wedges the valve up against its seat.

Upon the side ofthe shell or casing A is a recessed projection or hub,A3, like an ordinary stuffing-box, and which receives a collar, E2, onthe rock-shaft.

G designates an externally screw-threaded plug or gland, which screwsinto the projection A3, like the gland of a stuffing-box.

In the outer face of the collar. Ez is formed an annular groove, Z, andthe plug or gland G is formed with a valve-like projection or face, m,which, as the nut is screwed up, enters and snugly lits in the groove Z.The groove forms a seat, and the plug or gland, or the projectionthereon, forms a valve, which prevents leakage around the rock-shaft andbetween it and the plug or gland. The collar E2 iits and is held betweenthe rigid surfaces formed by the bottom of the stuffing-box and the endof the plug or gland.

If desired, the projection m might be on the collar E2 and the grooveZin the end ofthe nut.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-v `1. The combination, with a valve, its shell or casing, and meansfor moving the valve in a direction transverse to the water lway orpassage, of an adjustable and removable seat screwed into one of thepipe sockets -or openings of the shell or casing to a position in- Iwardof the outer end of the socket or opening, so as to leave on the outerside of 'said seat a screw-threaded portion of the socket or opening,for the reception of a pipe, substantially as herein described.

2. The combination of a valve shell or casing, a carriage slidingtherein in a direction transverse to the water way or passage, a valveattached to the carriage, but capable of adjusting itself` in alldirections independently of the carriage, and an adjustable andremovable valve-seat screwed into one of the pipe sockets or openings inthe shell or casing to a position inward of the outer end of said socketor opening, so as to leave on the outer side of said seat a screwthreaded portion of the socket or opening,for the reception of a pipe,substantially as herein described.

3. The combination, with the stuffing-box, of the valve-operatingrock-shaft provided with a collar tting in said boX, and the outer sideof which forms a valve-seat, and an eX- ternally screw-threaded plug orgland screwed into the box, and having a valve-like face which bearsupon and forms a tight joint with said collar to prevent leakage betweenthe shaft and the plug or gland, the said collar being held between therigid surfaces formed by the bottom ofthe stuffing-box and the inner endof said plug or gland, substantially as herein described.

4. The combination ofthe stuffing-box A3,the shaft E, provided withacollar,E2, in the outer side of which is a grooved seat, l, and the eX-ternallyscrcw-threaded plug or gland G, hav- IOO ing a valve-likeprojection, m, which enters and forms a tight'joint with said groove,the said collar being held by the rigid surfaces formed by the bottom ofthe stufngbox and the inner end of said plug or gland, substantially asherein described.

5. The combination'of the valve C, having a rounded back and aprojection, d, the carriage D, having the hole c beveled in the back,and the washer f and screw g, substantially as herein described.

6. The combination of the valve C, carriage D, provided with the armsz', the lever F, fitting between said arms, and provided with horns j,projecting from opposite sides, and engaging with the arms t' z', andalso provided with the portion 7c, bearing on the top of the carriage ata point between the arms and the rock-shaft E, substantially as hereindescribed.

JOHN S. LENG.

Witnesses: e

'FREDIL HAYNEs,

En. L. MoRAN.

